MLRS doesn't stop

A player pushed the button and an unlimited MLRS just kept firing, spamming my server console. 

NullReferenceException: Object reference not set to an instance of an object
  at (wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition.BaseCombatEntity.Hurt_Patch1(BaseCombatEntity,HitInfo)
  at BaseCombatEntity.OnAttacked (HitInfo info) [0x00067] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at DamageUtil.RadiusDamage (BaseEntity attackingPlayer, BaseEntity weaponPrefab, UnityEngine.Vector3 pos, System.Single minradius, System.Single radius, System.Collections.Generic.List`1[T] damage, System.Int32 layers, System.Boolean useLineOfSight, System.Boolean ignoreAI, System.Boolean ignoreAttackingPlayer, System.Boolean extendedLineOfSight, System.Collections.Generic.List`1[T] playerDamage, System.Boolean removeWallpaper, System.Boolean includeBoatBuildingPieces, BaseEntity ignoreEntity) [0x002b4] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at (wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition.TimedExplosive.Explode_Patch1(TimedExplosive,UnityEngine.Vector3)
  at MLRSRocket.ProjectileImpact (UnityEngine.RaycastHit info, UnityEngine.Vector3 rayOrigin) [0x00000] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at ServerProjectile.ProcessHit (UnityEngine.RaycastHit hitInfo, BaseEntity hitEnt, UnityEngine.Vector3 rayOrigin) [0x00047] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at ServerProjectile.DoHitDetection (UnityEngine.Vector3 velocityToUse, System.Single distance) [0x0008c] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at ServerProjectile.DoMovement () [0x0004b] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 
  at ServerProjectile.FixedUpdate () [0x00028] in <ee42652ca91d4d5db107b9e8ee60adc3>:0 

Changed Status from Pending to Fixed
Changed Fixed In from Not set to 2.2.1